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72660060 = 223251136697
BaseRepresentation
bin1000101010010…
…11010001011100
312001201111212100
410111023101130
5122100110220
611113205100
71541412624
oct425132134
9161644770
1072660060
1138018640
1220400790
1312090525
149915884
1565a3d90
hex454b45c

72660060 has 72 divisors (see below), whose sum is σ = 240445296. Its totient is φ = 17614080.

The previous prime is 72660043. The next prime is 72660113. The reversal of 72660060 is 6006627.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16369 + ... + 20328.

It is an arithmetic number, because the mean of its divisors is an integer number (3339518).

Almost surely, 272660060 is an apocalyptic number.

It is an amenable number.

72660060 is an abundant number, since it is smaller than the sum of its proper divisors (167785236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72660060 is a wasteful number, since it uses less digits than its factorization.

72660060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36723 (or 36718 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 72660060 is about 8524.0870478896. The cubic root of 72660060 is about 417.2841773590.

Adding to 72660060 its reverse (6006627), we get a palindrome (78666687).

The spelling of 72660060 in words is "seventy-two million, six hundred sixty thousand, sixty".

Divisors: 1 2 3 4 5 6 9 10 11 12 15 18 20 22 30 33 36 44 45 55 60 66 90 99 110 132 165 180 198 220 330 396 495 660 990 1980 36697 73394 110091 146788 183485 220182 330273 366970 403667 440364 550455 660546 733940 807334 1100910 1211001 1321092 1614668 1651365 2018335 2201820 2422002 3302730 3633003 4036670 4844004 6055005 6605460 7266006 8073340 12110010 14532012 18165015 24220020 36330030 72660060